| 摘要 |
Apparatus for continuously drying a web of paper sheet material having a pair of foraminous, thermally conductive, endless conveyor belts supported to receive a web therebetween and carry the same under tension around at least two closely spaced heater rolls, each roll in turn reversing the direction of travel of the belts and in contact therewith for greater than 180 DEG of its cylindrical surface, thus providing adjacent zones of concentrated heat exchange in a dimensionally compact high speed drying operation. Blow-through heating rolls guide the belts at the web inlet and outlet for preheating each belt in advance of web contact therewith.
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